Elf Atochem
9Patents
0Active
9Granted
28Portfolio score
Filing activity: Sep 8, 1992 → Mar 28, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5439998A | Fluorine-containing copolymers and their use for coating and impregnating various substrates | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6123850A | Process for the purification of virtually anhydrous organic liquids | Performing Operations; Transporting | 11 | Expired |
| US6649560B2 | Bulk catalysts based on chromium and on nickel for the gas-phase fluorination of halogenated hydrocarbons | Chemistry; Metallurgy | 10 | Expired |
| US5908412A | Coated non-woven material, its making process and its use in a disposable absorbent hygiene article | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6090883A | Process of manufacture of phenolic resins for the manufacture of products containing glass fibres and mineral fibres | Chemistry; Metallurgy | 6 | Expired |
| US6572729B1 | Imidazole derivative-catalyzed polyurethane formulations based on hydroxylated polybutadiene | Chemistry; Metallurgy | 3 | Expired |
| US5243007A | Polymers based on vinyl chloride prepared by mass polymerization | Performing Operations; Transporting | 1 | Expired |
| US6641791B2 | Generation of boron-trifluoride and sulphuric acid from boron trifluoride hydrate | Chemistry; Metallurgy | 0 | Expired |
| US6551956B1 | Catalytic component for the polymerization of olefins obtained by impregnation of a prepolymer with a solution of a catalytic component, and the prepolymer obtained from the catalytic component | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.